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1.2A resolution structure of a crayfish trypsin complexed with a peptide inhibitor, SGTI
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1H4W PDB ENTRY 1H4W TRUNCATED TO POLYALANINE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.6 293 30% PEG 400, 0.1 M CD CHLORIDE, 0.1 M NA ACETATE, pH 4.60, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.07 40.65
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 41.283 α = 90 b = 59.673 β = 90 c = 97.302 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 4 MIRROR M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-2 0.933 ESRF ID14-2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.2 32.1 91.1 0.06 7.1 3.4 69145 -3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.2 1.23 51.8 0.2 3.3 1.5
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1H4W TRUNCATED TO POLYALANINE 1.2 32.1 65673 54446 3470 91.1 0.139 0.1654 0.182 0.1929 RANDOM
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 3
RMS Deviations Key Refinement Restraint Deviation s_from_restr_planes 0.428 s_non_zero_chiral_vol 0.074 s_zero_chiral_vol 0.07 s_approx_iso_adps 0.04 s_angle_d 0.029 s_similar_adp_cmpnt 0.027 s_anti_bump_dis_restr 0.018 s_bond_d 0.012 s_rigid_bond_adp_cmpnt 0.004 s_similar_dist
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3802 Nucleic Acid Atoms Solvent Atoms 343 Heterogen Atoms 8
Software Software Software Name Purpose MOSFLM data reduction SCALA data scaling MOLREP phasing SHELXL-97 refinement CCP4 data scaling